Same tack, overlapped — does leeward or windward have right of way?

When two boats are on the same tack and overlapped, Rule 11 applies: the windward boat must keep clear of the leeward boat. This is different from Rule 10, which only governs boats on opposite tacks — don't confuse the two when a crossing looks like a port-starboard situation.

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Recommended reading

  • The Rules in Practice 2025-2028 by Bryan Willis — The clearest guide to the racing rules around the racecourse — updated for the current 2025-2028 rulebook.
  • Advanced Racing Tactics by Stuart H. Walker — The classic deep-dive on racing tactics — starting, beating, reaching and mark rounding.

📋 The full sailing reading list — all 13 books, free and tickable — opens in ABC, a free checklist app. No login, works offline; some titles carry an Amazon link inside it.

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Next on this shelf — The Upwind Beat